Sharper Image RADIUS 5H Personal Space Heater: Is It Worth It in 2026?
The RADIUS 5H works well as a compact desk heater with solid safety features. It is not powerful enough for full-room heating and costs more than similar 750W options.
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Key Specifications
Best For
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Our Verdict
The Sharper Image RADIUS 5H heats your personal space, not a full room. At 750W max, it covers about 75 square feet. Use it at a desk or beside your chair.
It has two automatic shut-offs built in. One triggers if it tips over. One triggers if it overheats.
The cool-touch exterior stays safe around kids and pets. The compact dish shape fits on or under your desk. An integrated handle makes it easy to move.
There is no thermostat. You pick Low (375W) or High (750W) and that is it. The timer helps, but the unit cannot hold a set temperature.
At $79.99, you pay above the typical price for a 750W personal heater. Similar heaters often cost $30 to $50. You are paying partly for the Sharper Image design.
What We Like
- Two-stage safety shut-off covers both tip-over and overheat risks.
- Cool-touch exterior stays safe to touch at full 750W operation.
- Compact dish shape fits easily on or under a desk with a small footprint.
- Fan-only mode lets you use it in summer, not just in winter.
- Integrated handle makes it easy to carry from room to room.
What Could Be Better
- No thermostat means it cannot hold a set temperature automatically.
- Max output is 750W, well below the 1500W standard for room heating.
- No oscillation limits heat to one fixed direction only.
- No remote control requires you to adjust settings directly at the unit.
- At $79.99, the price is higher than most competitors offering the same 750W output.
Standout Features
Full Specifications
Additional Info
| Assembly | No |
Frequently Asked Questions
Common questions about Sharper Image RADIUS 5H Personal Space Heater, Black
How large of an area can this heater warm?
The RADIUS 5H runs at 750W max. That covers about 75 square feet. It is designed for personal areas like a desk or workspace, not a full room.
Does it have a thermostat to control temperature?
No. You choose between two settings: Low (375W) or High (750W). The heater cannot sense or hold a specific temperature automatically.
Is this heater safe to leave running while I work?
It has overheat protection and tip-over protection built in. The cool-touch exterior adds extra safety. The timer lets you set it to turn off at a specific time.
Can I use it in a garage or outdoor area?
No. This heater is rated for indoor use only. At 750W, it also lacks the power needed for large, uninsulated spaces like garages or workshops.
Does it come with a remote control?
No. There is no remote control included. You must adjust the heat settings directly on the unit.
Best For
How this product scores for different use cases
Scores
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